Shantanu Naidu, the 27-year-old assistant of Ratan Tata, started 'On Your Sparks' during lockdown, an online talk to help aspiring entrepreneurs. An MBA holder from Cornell University, Naidu has been assisting Ratan Tata for two years. Tata met Naidu and hired him after Naidu wrote to him about a collar he made to protect dogs from being hit by vehicles.